V-Tap VoIP Manual EN v2.7 Oct 2018 © 2017-2018 Vidicode 27
3.3.10
Port settings
Ports 1, 2, 3 and 4 are named PHONE3, PHONE2, PHONE1 and LAN on the box !
Split Ports 12 from Ports 34
Split Ports 123 from Port 4
In the case where there are two physical networks, one of these
parameters can be set to separate ports 1 and 2 from ports 3 and 4 or
separate ports 1, 2 and 3 from port 4.
In the first case, ports 3 and 4 are meant to be used for the Tunnel
function and the web interface (the data LAN) and ports 1 and 2 are
connected to a VoIP phone (the VoIP LAN).
Setting both Split Port parameters defines port 1 and 2 as special
sniffer ports, to input mirrored data coming from another switch.
The split port 4 operation can also be used in combination with the
mirror functions below to isolate port 4 for data access.
For schematic drawings of the split ports operation: see
Split Ports
.
Mirror Ports 123 to Port 4
Mirror Ports 12 to Port 3
By enabling one of the two Mirror functions, the Tunnel function is
lost. Data storage is not done anymore and the V-Tap unit is only
used as a flow controller, where the data is sent real-time back to the
network.
Port mirroring is used to send a copy of the network packets to the
selected port. On the receiving side, there can be an Apresa recorder
processing those packets and making calls out of them.
Mirroring to port 3 can be used when port 4 is not needed for copy.
In that case the PC network can be connected to port 4 for
continuous web access.
The separation of the mirrored ports and port 4 is even bigger when
the split-ports operation is enabled (see above).
Both Mirror functions should not be enabled at the same time, in
which case port 4 is selected. The Blue LED is steady ON with
mirroring enabled.
Schemes of the mirror function:
Mirror to Port 4
and
Mirror to Port 3
.
NOTE: The Tunnel function is disabled when using the Mirror function!